Storage tank

The invention discloses a storage tank. The storage tank comprises a tank body, a mesh and a vibrator; a containing cavity is defined by the tank body, and the tank body is provided with a dischargingoutlet; the discharging outlet is configured to enable a powder material located in the containing cavity to be discharged from the discharging outlet; the mesh is located at the discharging outlet and configured to limit the discharging speed of the powder material; and the vibrator is located on the wall surface of the tank body and configured to be able to drive the tank body to vibrate. According to the storage tank, constant-speed discharging of the powder material is ensured, meanwhile compared with the situation that discharging of the powder material is promoted in a powder material stirring mode, the mode of driving the tank body to vibrate enables the powder material adhering to the inner wall face of the tank body to be separated from the inner wall of the tank body and then discharged to the outside o